7642669351 has 8 divisors (see below), whose sum is σ = 7904366208. Its totient is φ = 7381920000.

The previous prime is 7642669343. The next prime is 7642669357. The reversal of 7642669351 is 1539662467.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 7642669351 - 2³ = 7642669343 is a prime.

It is a super-2 number, since 2×7642669351² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7642669295 and 7642669304.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (7642669357) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 220450 + ... + 252751.

It is an arithmetic number, because the mean of its divisors is an integer number (988045776).

Almost surely, 2^7642669351 is an apocalyptic number.

7642669351 is a deficient number, since it is larger than the sum of its proper divisors (261696857).

7642669351 is a wasteful number, since it uses less digits than its factorization.

7642669351 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 473753.

The product of its digits is 1632960, while the sum is 49.

The square root of 7642669351 is about 87422.3618475273. The cubic root of 7642669351 is about 1969.7677542356.

The spelling of 7642669351 in words is "seven billion, six hundred forty-two million, six hundred sixty-nine thousand, three hundred fifty-one".